<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/loose.dtd">
<HTML
><HEAD
><TITLE
>Frames</TITLE
><META
NAME="GENERATOR"
CONTENT="Modular DocBook HTML Stylesheet Version 1.79"><LINK
REL="HOME"
TITLE="GTK+ 2.0 Tutorial"
HREF="book1.html"><LINK
REL="UP"
TITLE="Container Widgets"
HREF="c1228.html"><LINK
REL="PREVIOUS"
TITLE="Layout Container"
HREF="x1281.html"><LINK
REL="NEXT"
TITLE="Aspect Frames"
HREF="x1319.html"></HEAD
><BODY
CLASS="SECT1"
BGCOLOR="#FFFFFF"
TEXT="#000000"
LINK="#0000FF"
VLINK="#840084"
ALINK="#0000FF"
><DIV
CLASS="NAVHEADER"
><TABLE
SUMMARY="Header navigation table"
WIDTH="100%"
BORDER="0"
CELLPADDING="0"
CELLSPACING="0"
><TR
><TH
COLSPAN="3"
ALIGN="center"
>GTK+ 2.0 Tutorial</TH
></TR
><TR
><TD
WIDTH="10%"
ALIGN="left"
VALIGN="bottom"
><A
HREF="x1281.html"
ACCESSKEY="P"
>&#60;&#60;&#60; Previous</A
></TD
><TD
WIDTH="80%"
ALIGN="center"
VALIGN="bottom"
>Container Widgets</TD
><TD
WIDTH="10%"
ALIGN="right"
VALIGN="bottom"
><A
HREF="x1319.html"
ACCESSKEY="N"
>Next &#62;&#62;&#62;</A
></TD
></TR
></TABLE
><HR
ALIGN="LEFT"
WIDTH="100%"></DIV
><DIV
CLASS="SECT1"
><H1
CLASS="SECT1"
><A
NAME="SEC-FRAMES"
>Frames</A
></H1
><P
>Frames can be used to enclose one or a group of widgets with a box
which can optionally be labelled. The position of the label and the
style of the box can be altered to suit.</P
><P
>A Frame can be created with the following function:</P
><TABLE
BORDER="0"
BGCOLOR="#E0E0E0"
WIDTH="100%"
><TR
><TD
><PRE
CLASS="PROGRAMLISTING"
>GtkWidget *gtk_frame_new( const gchar *label );</PRE
></TD
></TR
></TABLE
><P
>The label is by default placed in the upper left hand corner of the
frame. A value of NULL for the <TT
CLASS="LITERAL"
>label</TT
> argument will result in no
label being displayed. The text of the label can be changed using the
next function.</P
><TABLE
BORDER="0"
BGCOLOR="#E0E0E0"
WIDTH="100%"
><TR
><TD
><PRE
CLASS="PROGRAMLISTING"
>void gtk_frame_set_label( GtkFrame    *frame,
                          const gchar *label );</PRE
></TD
></TR
></TABLE
><P
>The position of the label can be changed using this function:</P
><TABLE
BORDER="0"
BGCOLOR="#E0E0E0"
WIDTH="100%"
><TR
><TD
><PRE
CLASS="PROGRAMLISTING"
>void gtk_frame_set_label_align( GtkFrame *frame,
                                gfloat    xalign,
                                gfloat    yalign );</PRE
></TD
></TR
></TABLE
><P
><TT
CLASS="LITERAL"
>xalign</TT
> and <TT
CLASS="LITERAL"
>yalign</TT
> take values between 0.0 and 1.0. <TT
CLASS="LITERAL"
>xalign</TT
>
indicates the position of the label along the top horizontal of the
frame. <TT
CLASS="LITERAL"
>yalign</TT
> is not currently used. The default value of xalign
is 0.0 which places the label at the left hand end of the frame.</P
><P
>The next function alters the style of the box that is used to outline
the frame.</P
><TABLE
BORDER="0"
BGCOLOR="#E0E0E0"
WIDTH="100%"
><TR
><TD
><PRE
CLASS="PROGRAMLISTING"
>void gtk_frame_set_shadow_type( GtkFrame      *frame,
                                GtkShadowType  type);</PRE
></TD
></TR
></TABLE
><P
>The <TT
CLASS="LITERAL"
>type</TT
> argument can take one of the following values:</P
><TABLE
BORDER="0"
BGCOLOR="#E0E0E0"
WIDTH="100%"
><TR
><TD
><PRE
CLASS="PROGRAMLISTING"
>  GTK_SHADOW_NONE
  GTK_SHADOW_IN
  GTK_SHADOW_OUT
  GTK_SHADOW_ETCHED_IN (the default)
  GTK_SHADOW_ETCHED_OUT</PRE
></TD
></TR
></TABLE
><P
>The following code example illustrates the use of the Frame widget.</P
><P
><SPAN
CLASS="INLINEMEDIAOBJECT"
><IMG
SRC="images/frame.png"></SPAN
></P
><TABLE
BORDER="0"
BGCOLOR="#E0E0E0"
WIDTH="100%"
><TR
><TD
><PRE
CLASS="PROGRAMLISTING"
>&#13;#include &#60;gtk/gtk.h&#62;

int main( int   argc,
          char *argv[] )
{
  /* GtkWidget is the storage type for widgets */
  GtkWidget *window;
  GtkWidget *frame;

  /* Initialise GTK */
  gtk_init (&#38;argc, &#38;argv);
    
  /* Create a new window */
  window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
  gtk_window_set_title (GTK_WINDOW (window), "Frame Example");

  /* Here we connect the "destroy" event to a signal handler */ 
  g_signal_connect (G_OBJECT (window), "destroy",
		    G_CALLBACK (gtk_main_quit), NULL);

  gtk_widget_set_size_request (window, 300, 300);
  /* Sets the border width of the window. */
  gtk_container_set_border_width (GTK_CONTAINER (window), 10);

  /* Create a Frame */
  frame = gtk_frame_new (NULL);
  gtk_container_add (GTK_CONTAINER (window), frame);

  /* Set the frame's label */
  gtk_frame_set_label (GTK_FRAME (frame), "GTK Frame Widget");

  /* Align the label at the right of the frame */
  gtk_frame_set_label_align (GTK_FRAME (frame), 1.0, 0.0);

  /* Set the style of the frame */
  gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_ETCHED_OUT);

  gtk_widget_show (frame);
  
  /* Display the window */
  gtk_widget_show (window);
    
  /* Enter the event loop */
  gtk_main ();
    
  return 0;
}</PRE
></TD
></TR
></TABLE
></DIV
><DIV
CLASS="NAVFOOTER"
><HR
ALIGN="LEFT"
WIDTH="100%"><TABLE
SUMMARY="Footer navigation table"
WIDTH="100%"
BORDER="0"
CELLPADDING="0"
CELLSPACING="0"
><TR
><TD
WIDTH="33%"
ALIGN="left"
VALIGN="top"
><A
HREF="x1281.html"
ACCESSKEY="P"
>&#60;&#60;&#60; Previous</A
></TD
><TD
WIDTH="34%"
ALIGN="center"
VALIGN="top"
><A
HREF="book1.html"
ACCESSKEY="H"
>Home</A
></TD
><TD
WIDTH="33%"
ALIGN="right"
VALIGN="top"
><A
HREF="x1319.html"
ACCESSKEY="N"
>Next &#62;&#62;&#62;</A
></TD
></TR
><TR
><TD
WIDTH="33%"
ALIGN="left"
VALIGN="top"
>Layout Container</TD
><TD
WIDTH="34%"
ALIGN="center"
VALIGN="top"
><A
HREF="c1228.html"
ACCESSKEY="U"
>Up</A
></TD
><TD
WIDTH="33%"
ALIGN="right"
VALIGN="top"
>Aspect Frames</TD
></TR
></TABLE
></DIV
></BODY
></HTML
>